NASM - The Netwide Assembler

NASM Forum => Programming with NASM => Topic started by: jsvcycling on July 05, 2011, 03:00:54 AM

Title: Including C headers in NASM
Post by: jsvcycling on July 05, 2011, 03:00:54 AM: I'd like to know if it is possible to include C headers in NASM source files. I know you can use EXTERN to reference C functions, but is it possible to include C headers (similar to GAS)?

If not, I'd like to recommend that as a feature for future releases...

Thanks,
Jsvcycling
Title: Re: Including C headers in NASM
Post by: Frank Kotler on July 05, 2011, 04:58:36 AM: Rob Neff is working on something that will convert a C header into an .inc file suitable for Nasm:

http://h2incn.svn.sourceforge.net/viewvc/h2incn/trunk/

I don't anticipate the ability to eat .h files to be incorporated into Nasm, but it's an interesting idea...

Best,
Frank
Title: Re: Including C headers in NASM
Post by: Cyrill Gorcunov on July 05, 2011, 06:49:25 AM: Quote from: Frank Kotler on July 05, 2011, 04:58:36 AM
I don't anticipate the ability to eat .h files to be incorporated into Nasm, but it's an interesting idea...

I guess we might pick it up into contrib/ directory or something like that.
Title: Re: Including C headers in NASM
Post by: jsvcycling on July 05, 2011, 02:36:57 PM: Quote from: Cyrill Gorcunov on July 05, 2011, 06:49:25 AM
I guess we might pick it up into contrib/ directory or something like that.

Sounds like a good idea if it won't be implemented anytime soon, I can't help you very much because I'm still a NASM N00B...

Quote from: Frank Kotler on July 05, 2011, 04:58:36 AM
http://h2incn.svn.sourceforge.net/viewvc/h2incn/trunk/

Thanks, I'll check it out...

Thanks,
Jsvcycling
Title: Re: Including C headers in NASM
Post by: Cyrill Gorcunov on July 05, 2011, 09:37:51 PM: C preprocessor parser is not hard thing (nasm preprocessor is a way more powerful) so I suspect we might consider implementing some converter inside nasm code directly as only time permits ;)
Title: Re: Including C headers in NASM
Post by: Rob Neff on July 06, 2011, 12:02:17 AM: my version of h2incn on sf.net remains incomplete. I will revisit that project once NASMX v1.0 is out of beta ( Real Soon Now^TM).

Cyril, I'm not sure if adding that capability to Nasm would be worth your effort, especially in light of what most Windows Nasm users would want it to do - pull in the entire Windows headers fileset - needed due to the many dependencies among the various files. However, don't let me stop you if you feel it worthwhile! ;D
Title: Re: Including C headers in NASM
Post by: Cyrill Gorcunov on July 06, 2011, 05:35:26 AM: Quote from: Rob Neff on July 06, 2011, 12:02:17 AM
my version of h2incn on sf.net remains incomplete. I will revisit that project once NASMX v1.0 is out of beta ( Real Soon Now^TM).

Cyril, I'm not sure if adding that capability to Nasm would be worth your effort, especially in light of what most Windows Nasm users would want it to do - pull in the entire Windows headers fileset - needed due to the many dependencies among the various files. However, don't let me stop you if you feel it worthwhile! ;D

OK, I see ;) I meant not only Windows users but imagine an abstract user who mixing C and asm code, in most cases there will be shared #define/%define :)
Title: Re: Including C headers in NASM
Post by: Rob Neff on July 06, 2011, 11:06:51 AM: In addition to #define are you also thinking about supporting typedef and struct { }; ???
And since we're talking about enhancing Nasm - can you please add support of nested structs/unions.
My original forum post (http://forum.nasm.us/index.php?topic=872.0) asking for that feature.
You would make a lot of people happy! ;)
Title: Re: Including C headers in NASM
Post by: Cyrill Gorcunov on July 06, 2011, 09:34:31 PM: oh, Rob, I still didn't manage with a way more trivial things in nasm, no time :( But I would like you to pull into development team :) Mind to try to enhance nasm? :D
Title: Re: Including C headers in NASM
Post by: Cyrill Gorcunov on July 06, 2011, 09:44:35 PM: I mean I don't lose the hope to pull you into dev team ;)
Title: Re: Including C headers in NASM
Post by: Rob Neff on July 07, 2011, 09:27:12 PM: If I can find some free time this month or next I just might be motivated enough to take a shot at it ;)